669364 has 6 divisors (see below), whose sum is σ = 1171394. Its totient is φ = 334680.

The previous prime is 669359. The next prime is 669371. The reversal of 669364 is 463966.

669364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 501264 + 168100 = 708^2 + 410^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83667 + ... + 83674.

2⁶⁶⁹³⁶⁴ is an apocalyptic number.

It is an amenable number.

669364 is a deficient number, since it is larger than the sum of its proper divisors (502030).

669364 is a wasteful number, since it uses less digits than its factorization.

669364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167345 (or 167343 counting only the distinct ones).

The product of its digits is 23328, while the sum is 34.

The square root of 669364 is about 818.1466861144. The cubic root of 669364 is about 87.4757048195.

The spelling of 669364 in words is "six hundred sixty-nine thousand, three hundred sixty-four".